
Curios:
Curios Search:
Participate: 
62 = 14 + 15 + 16 + the prime number 17. [Phillips] One of only two numbers which contain exactly the first three digits in its unique prime factorization. [Hunter] The largest known even number that cannot be expressed as the sum of two odd semiprimes. The sum of the prime factors of this semiprime gives the largest known number that cannot be expressed as the sum of two semiprimes. [Capelle] The only doubledigit number n such that 3^nR(n) is prime where R(n) is the reversal of n, i.e., 3^6226 = 381520424476945831628649898783. [Loungrides]
(There are 3 curios for this number that have not yet been approved by an editor.)
Prime Curios! © 20002018 (all rights
reserved)
privacy statement
